01 - Bring a large pot of salted water to a rolling boil. Add the trimmed green beans and cook for 3 to 4 minutes until they are bright green and just tender-crisp. Promptly drain the beans and immerse them in an ice bath to halt the cooking process. Drain thoroughly once more and set aside.
02 - In a large skillet, place the sliced almonds over medium heat. Toast, stirring frequently, for approximately 2 to 3 minutes until they achieve a golden brown hue and become fragrant. Transfer the toasted almonds to a plate and reserve.
03 - Using the same skillet, add olive oil and heat over medium heat. Introduce the finely minced garlic and sauté for 30 seconds until aromatic, taking care not to brown the garlic.
04 - Add the prepared green beans to the skillet. Toss to ensure they are thoroughly coated with the garlic and oil mixture. Sauté for an additional 2 to 3 minutes until the green beans are heated through. Incorporate the lemon zest, fresh lemon juice, salt, and black pepper. Toss vigorously to combine all ingredients evenly.
05 - Just prior to serving, generously sprinkle the reserved toasted almonds over the lemon garlic green beans.